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BACKGROUND: Trauma associated splenic artery aneurysm (SAA) is potentially life threatening and infrequently studied. We evaluated the subject using a large trauma database.

METHODS: The National Trauma Data Bank (2002 to 2006) was queried. All patients aged greater than or equal to 18 years with a primary diagnosis of SAA (International Classification of Diseases: Ninth Revision code 442.83) were identified. Data on demographics, injury severity, pre-existing comorbidities, surgical interventions, complications, and mortality were analyzed.

RESULTS: One hundred twenty-four patients were included with a mean age of 40 ± 13 years and 72% were male. Mean Injury Severity Score was 24 ± 12. All patients suffered blunt trauma, and 5% of the patients (n = 6) had systolic blood pressure less than 90 mm Hg on arrival. The most frequent interventions were surgical ligation of aneurysm (45%), bronchoscopy (35%), endovascular procedures (27%), splenectomy (27%), and thoracostomy tube (25%). About 1.7% developed pulmonary collapse. Mean length of stay was 13 days and mortality was 1.6%.

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